“
Potassium, It is so soft that it can be cut with a knife. Plants require it for growth. Therefore, soil must contain potassium compounds to produce crops of high quality and yield. Potassium chloride is widely used in commercial fertilizers for most crops. But potassium sulfate is a better fertilizer for tobacco and crops that would be harmed by chloride. Potassium also is essential for human beings and other animals. It plays a part in metabolism, the process by which organisms change food into energy and new tissue. Alkali metal.” “Potassium's earliest use was for .”
Sir Humphry Davy was a famous scientist
who was born in Penzance,
England. He discovered potassium in 1807.
Potassium was discoverded in 1807 Penzance
England by the scientist Sir Humphry Davy.
Works Cited
"Cool Text: Logo and Graphics Generator." Cool Text: Logo and Graphics Generator. N.p., n.d. Web. 30 Nov. 2009. <http://cooltext.com>.
"Google Images." Google Images. N.p., n.d. Web. 20 Nov. 2009. <http://images.google.com/images?>.
"Interesting Facts About Potassium." Whitehall District Schools. N.p., n.d. Web. 20 Nov. 2009. <http://www.whitehall.k12.mi.us/EalyEl/5th%20Grade/Elements/k/Interesting%20Facts.htm>.
"Linus Pauling Institute at Oregon State University." Linus Pauling Institute at Oregon State University. N.p., n.d. Web. 20 Nov. 2009. <http://lpi.oregonstate.edu/infocenter/minerals/potassium/>.
"Periodic System." Potassium. N.p., n.d. Web. 23 Oct. 2009. <www.kjemi.uio.no/periodesystemet/media/Cl/bilder/HDavy.jpeg >.
"Periodic Table of the Elements." Prairie Hills Middle School Student Handbook 2009-2010 Aug. 2009: 109. Print.
"RootsWeb: Freepages." RootsWeb: Freepages. N.p., n.d. Web. 30 Nov. 2009. <http://freepages.history.rootsweb.ancestry.com>.
"WebElements Periodic Table of the Elements | Potassium | historical information." WebElements Periodic Table of the Elements. N.p., n.d. Web. 20 Nov. 2009. <http://www.webelements.com/potassium/history.html>.
"potassium." World Book. student ed. 2009. Print.
“
Potassium, It is so soft that it can be cut with a knife. Plants require it for growth. Therefore, soil must contain potassium compounds to produce crops of high quality and yield. Potassium chloride is widely used in commercial fertilizers for most crops. But potassium sulfate is a better fertilizer for tobacco and crops that would be harmed by chloride. Potassium also is essential for human beings and other animals. It plays a part in metabolism, the process by which organisms change food into energy and new tissue. Alkali metal.” “Potassium's earliest use was for .”
Sir Humphry Davy was a famous scientist
who was born in Penzance,
England. He discovered potassium in 1807.
Potassium was discoverded in 1807 Penzance
England by the scientist Sir Humphry Davy.
Works Cited
"Cool Text: Logo and Graphics Generator." Cool Text: Logo and Graphics Generator. N.p., n.d. Web. 30 Nov. 2009. <http://cooltext.com>.
"Google Images." Google Images. N.p., n.d. Web. 20 Nov. 2009. <http://images.google.com/images?>.
"Interesting Facts About Potassium." Whitehall District Schools. N.p., n.d. Web. 20 Nov. 2009. <http://www.whitehall.k12.mi.us/EalyEl/5th%20Grade/Elements/k/Interesting%20Facts.htm>.
"Linus Pauling Institute at Oregon State University." Linus Pauling Institute at Oregon State University. N.p., n.d. Web. 20 Nov. 2009. <http://lpi.oregonstate.edu/infocenter/minerals/potassium/>.
"Periodic System." Potassium. N.p., n.d. Web. 23 Oct. 2009. <www.kjemi.uio.no/periodesystemet/media/Cl/bilder/HDavy.jpeg >.
"Periodic Table of the Elements." Prairie Hills Middle School Student Handbook 2009-2010 Aug. 2009: 109. Print.
"RootsWeb: Freepages." RootsWeb: Freepages. N.p., n.d. Web. 30 Nov. 2009. <http://freepages.history.rootsweb.ancestry.com>.
"WebElements Periodic Table of the Elements | Potassium | historical information." WebElements Periodic Table of the Elements. N.p., n.d. Web. 20 Nov. 2009. <http://www.webelements.com/potassium/history.html>.
"potassium." World Book. student ed. 2009. Print.
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